High-quality materials: high-quality materials, safe and environmentally , more durable.Remove odor: purification filter, in addition to formaldehyde odor, purification of suspended matter.Effective filtration: Efficient filtration of particulate matter such as PM2.5, ash layer/hair, pollen/fines, etc.Safe and secure: the high-efficiency filter material to make you and more assured.Applicable models: For 1 generation 2 generation pro purifier filter.Purple version: Sterilization, disinfection, anti-Material:Composite materialcolour:PurplePackage Contents:1 x purifier filterOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.